JP4764957B1 - Electronic book browsing apparatus and electronic book browsing program - Google Patents

Abstract

To provide an electronic book browsing apparatus and an electronic book browsing program capable of improving the practicality and convenience of browsing an electronic book.
An electronic book browsing apparatus for browsing an electronic book, a physical book information DB31b storing a page marker for identifying a physical page of the physical book and a physical page number assigned to the physical page. And an electronic book detailed information DB 31d for storing an electronic page number for identifying an electronic page of the electronic book and an electronic page content of the electronic book, and a page marker displayed on the physical page being browsed by the user Based on the corresponding physical page number and the number of rotations that is the number of rotations of the physical book by the user, the electronic page number of the electronic page linked to the physical page is specified, and the contents of this electronic page are converted into the electronic book. The electronic book browsing part 32c acquired from detailed information DB31d and displayed on a display means is provided.
[Selection] Figure 7

Description

  The present invention relates to an electronic book browsing apparatus and an electronic book browsing program.

  2. Description of the Related Art Conventionally, there has been proposed an electronic book browsing apparatus capable of storing downloaded electronic book data in an information portable terminal (PDA) and displaying the electronic book on a display of the PDA for browsing. In this type of electronic book browsing apparatus, it is generally possible for a user to virtually turn a page of an electronic book by touching the display with a finger. However, since such an electronic book browsing device requires the user to perform a different operation from the conventional browsing operation of a printed publication, for example, it is necessary to turn the page by a special operation such as touching the display, There was room for improvement in operability.

  Therefore, an electronic book browsing apparatus that can browse an electronic book by performing the same operation as the conventional browsing operation of a printed publication has also been proposed. For example, Patent Literature 1 discloses an electronic book browsing apparatus that includes a camera-equipped head-mounted display that can browse an electronic book using an electronic publication browsing book on which a marker is printed. An apparatus is disclosed. According to this electronic book browsing apparatus, a marker of an electronic publication browsing book is read by a camera, electronic book information associated with the marker in advance is acquired from a database, and the acquired electronic book information is displayed on a head-mounted display. Can be displayed. Therefore, in the same way as the conventional browsing operation of printed publications, the user physically retrieves the pages of the electronic publication viewing book, thereby obtaining the electronic publication information corresponding to the marker printed on each page. You can browse.

JP 2003-150599 A

  However, in the conventional electronic book browsing apparatus using the electronic publication browsing book as described above, various problems caused by the correspondence between the number of pages of the electronic publication browsing book and the number of pages of the electronic book are not considered at all. Was not. For example, in the electronic book browsing apparatus described in Patent Document 1, the marker of each page in the electronic publication browsing book and the electronic book information are simply and uniquely associated with each other, and the number of pages of both is mutually related. Since it was assumed that they were the same, it was not assumed that the number of pages of both would be different from each other. Therefore, if the number of pages of the electronic book is larger than the number of pages of the book for browsing electronic publications, the marker corresponding to the excess pages cannot be displayed on the book for browsing electronic publications. There was a problem that the page of the electronic book could not be displayed.

  The present invention has been made in view of the above, and browses an electronic book by solving various problems caused by the correspondence between the number of pages of an electronic publication viewing book and the number of pages of the electronic book. It is an object of the present invention to provide an electronic book browsing apparatus and an electronic book browsing program that can improve the practicality and convenience of doing so.

  The electronic book browsing apparatus according to claim 1 is an electronic book browsing apparatus for browsing an electronic book, and is displayed on each of the plurality of physical pages to identify a plurality of physical pages of the physical book. Physical book information storage means for storing a page marker and physical page numbers assigned to each of the plurality of physical pages in order to identify a plurality of physical pages of the physical book, and the electronic An electronic device that stores an electronic page number assigned to each of the plurality of electronic pages to identify a plurality of electronic pages of the book and contents of each of the plurality of electronic pages of the electronic book in association with each other. When the page marker displayed on the physical page browsed by the user among the plurality of physical pages of the physical book and the book information storage unit is read by a predetermined reading unit, the read page marker Physical corresponding to The number is acquired from the physical book information storage means, and the number of rotations, which is the number of rotations of the physical book by the user, is specified by a predetermined method, and based on the acquired physical page number and the specified number of rotations The electronic page number of the electronic page associated with the physical page being browsed is specified, the content of the electronic page corresponding to the specified electronic page number is acquired from the electronic book information storage means, and the acquired content Electronic book browsing means for displaying the image on a predetermined display means.

  The electronic book browsing device according to claim 2 is the electronic book browsing device according to claim 1, further comprising a rotation speed information storage unit that stores rotation speed information for specifying the rotation speed. If the rotation marker displayed on each of the plurality of physical pages of the physical book is read by the reading unit in order to specify the holding direction of the physical book by the user, the means reads the rotation marker read It is determined whether or not the physical book has been rotated based on the result, and when it is determined that the physical book has been rotated, the rotation number information of the rotation number information storage unit is updated, and a plurality of physical pages of the physical book When the page marker displayed on the physical page being browsed by the user is read by a predetermined reading means, the physical page number corresponding to the read page marker is set to the object. While acquiring from the book information storage means, and specifying the rotation speed based on the rotation speed information stored in the rotation speed information storage means, based on the acquired physical page number and the specified rotation speed, The electronic page number of the electronic page associated with the physical page being browsed is specified, the content of the electronic page corresponding to the specified electronic page number is acquired from the electronic book information storage means, and the acquired content is It is displayed on a predetermined display means.

  The electronic book browsing apparatus according to claim 3 is the electronic book browsing apparatus according to claim 1 or 2, wherein a clip is attached to a physical page being browsed by a user among a plurality of physical pages of the physical book. If it is read by a predetermined reading means, the electronic page number of the electronic page linked to the physical page to which the clip is attached is linked to the physical page when the clip is attached. Clip processing means for fixing the electronic page number.

  The electronic book browsing program according to claim 4 identifies a page marker displayed on each of the plurality of physical pages and a plurality of physical pages of the physical book in order to identify a plurality of physical pages of the physical book. Therefore, physical book information storage means for storing the physical page numbers assigned to each of the plurality of physical pages in association with each other, and the plurality of electronic pages for identifying the plurality of electronic pages of the electronic book An electronic book information storage unit that stores an electronic page number assigned to each page and contents of each of the plurality of electronic pages of the electronic book in association with each other; When a page marker displayed on a physical page browsed by a user among a plurality of physical pages is read by a predetermined reading unit, the physical page number corresponding to the read page marker is set as the physical book. The information is acquired from the information storage means, and the number of rotations, which is the number of rotations of the physical book by the user, is specified by a predetermined method, and the user is browsed based on the acquired physical page number and the specified number of rotations. The electronic page number of the electronic page linked to the physical page is specified, the content of the electronic page corresponding to the specified electronic page number is acquired from the electronic book information storage means, and the acquired content is specified display means Function as an electronic book browsing means to be displayed on the screen.

  According to the electronic book browsing apparatus of Claim 1, or the electronic book browsing program of Claim 4, based on the physical page number of the physical page which the user is browsing, and the rotation speed of the physical book by the user. Since the electronic page number of the electronic page linked to the physical page being browsed is specified, even if the same physical page is being browsed, the electronic page varies depending on the number of rotations of the physical book The content of the electronic book can be displayed without being limited to the number of physical pages of the physical book, such as displaying the content of the number. Therefore, even when the number of electronic pages of the electronic book is larger than the number of physical pages of the physical book, the contents of all the electronic pages of the electronic book can be displayed. It is possible to solve a conventional problem caused by the correspondence between the number and the number of pages of the electronic book. For this reason, it is possible to improve the practicality and convenience of browsing electronic books.

  According to the electronic book browsing apparatus of the second aspect, the rotation number of the physical book by the user can be specified by reading the rotation marker displayed on each of the plurality of physical pages of the physical book. It is possible to easily and accurately specify the rotation speed of a physical book without forcing a special operation.

  According to the electronic book browsing apparatus of claim 3, when a clip is attached to a physical page being browsed by a user, the electronic page number of the electronic page linked to the physical page to which the clip is attached However, when the clip is attached, it is fixed to the electronic page number linked to the physical page, so that if the physical book is rotated after that, or another electronic book is linked to the physical book. Even in such a case, the contents of the same electronic page can always be browsed on the physical page.

It is a figure which shows typically the electronic book browsing system and physical book which concern on one embodiment of this invention. It is a figure which shows typically progress of the browsing state of a physical book. It is a figure for demonstrating the identification method of the holding | maintenance direction of a physical book using a page marker and a rotation marker. It is a figure which shows notionally the linking state of a physical page and an electronic page, (a) is a figure which shows the linking state in the case of the initial positive holding | maintenance direction, (b) is a physical book from the state of (a). It is a figure which shows the tied state at the time of rotating only once and setting it as a reverse holding direction. It is a figure which shows notionally the tied state of a physical page and an electronic page, (a) is a figure which shows the tied state in the case of initial positive holding | maintenance direction, (b) has attached the clip in the state of (a) FIG. 8C is a diagram showing a binding state when the physical book is rotated only once from the state of FIG. It is a figure which shows notionally the tied state of a physical page and an electronic page, (a) is the tied state in the case of initial positive holding | maintenance direction, (b) is the state which attached the clip from the state of (a). The figure which shows, (c) is the figure which shows the state where the other electronic book was tied with respect to the physical book from the state of (b), (d) was explicit declip from the state of (c) The figure which shows the state in case, (e) is a figure which shows the state when implicit declip is performed from the state of (c), (f) is the physical page to which the clip was attached after (e) It is a figure which shows the state at the time of being browsed for the first time. It is a block diagram which shows the electric structure of an electronic book browsing apparatus functionally conceptually. It is a figure which shows the structural example of user information. It is a figure which shows the structural example of physical book information. It is a figure which shows the structural example of electronic book basic information. It is a figure which shows the structural example of electronic book detailed information. It is a figure which shows the structural example of physical electronic corresponding | compatible information. It is a figure which shows the structural example of physical user corresponding information. It is a figure which shows the structural example of electronic user corresponding information. It is a figure which shows the structural example of physical book use condition information. It is a figure which shows the structural example of book selection tied information. It is a figure which shows the structural example of book browsing link information. It is a figure which shows the structural example of cocoon management information. It is a figure which shows the structural example of clip management information. It is a flowchart of a book marker use selection process. It is a flowchart of a user ID use selection process. It is a flowchart of an electronic book selection process. It is a flowchart of an electronic book browsing process. It is a figure which shows the physical book 50 of the state in which the bag was displayed, (a) is a figure which shows the state in which the bag is displayed on the physical page which is browsing, (b) is a page in the physical page which is not browsing It is a figure which shows the displayed state. It is a flowchart of a clip process. It is a flowchart of an explicit declip process.

  Embodiments of an electronic book browsing apparatus and an electronic book browsing program according to the present invention will be described below in detail with reference to the accompanying drawings. 1) First, the basic concept regarding the electronic book browsing device and the electronic book browsing program will be described. 2) Next, the configuration of the electronic book browsing system including the electronic book browsing device will be described. 3) Next, Processing performed in the electronic book browsing system will be described. 4) Finally, a modification of the present embodiment will be described.

(Basic concept)
First, basic concepts regarding the electronic book browsing apparatus and the electronic book browsing program will be described. FIG. 1 is a diagram schematically showing an electronic book browsing system and a physical book according to the present embodiment. As shown in FIG. 1, the electronic book browsing system 1 includes a reading device 10, a display device 20, and an electronic book browsing device 30. The reading device 10, the display device 20, and the electronic book browsing device 30 are connected to each other via a network 40 so as to be capable of wireless communication. The electronic book can be browsed using the electronic book browsing system 1 and the physical book 50. In FIG. 1, only one device is shown, but in reality, a plurality of devices can be provided. For example, a plurality of reading devices 10 can be provided for one electronic book browsing device 30. And the display device 20 can be connected.

  An “electronic book” is a virtual book that does not physically exist, and is a book that can be browsed by a user by displaying it on a display unit that displays electronic information. The electronic book, digital book, or electronic book Includes what is called a publication. The “physical book” 50 is a book that physically exists and is a book that can be used to browse electronic books. In this embodiment, in order to distinguish between various objects and information related to the electronic book and various objects and information related to the physical book 50, the former is given the letter “electronic” as necessary. In the latter case, the letters “physical” are attached. For example, each page of the electronic book is “electronic page”, the serial number of each page of the electronic book is “electronic page number”, the number of electronic pages is “number of electronic pages”, and each page of the physical book 50 is “physical page”, The serial number of each page of the physical book 50 is referred to as “physical page number”, and the number of physical pages is referred to as “physical page number”.

  As a method of using one physical book 50, there are a case where the electronic book is used for “selecting” and a case where the electronic book is used for “browsing”. The case of using for “selecting” means using one physical book 50 as a virtual index or a bookshelf for selecting a plurality of electronic books. In this case, a different electronic book is associated with each of a plurality of pages included in one physical book 50, and different electronic books are sequentially selected by turning the pages of the physical book 50. Can do. The case of using for “browsing” means using one physical book 50 to read the contents (contents) of the electronic book. In this case, each of the plurality of pages included in the electronic book is linked to each of the plurality of pages included in one physical book 50, and the electronic book is obtained by turning the pages of the physical book 50. Can be browsed sequentially. As described above, when used for “browsing”, only one electronic book may be associated with one physical book 50, but a plurality of electronic books may be associated. Hereinafter, a mode when the electronic book is used for “selecting” is referred to as a “selection mode”, and a mode when the electronic book is used for “browsing” is referred to as a “browsing mode”.

  In the “selection mode”, when a plurality of electronic books are associated with one physical book 50, the number of physical books associated with the physical book 50 is larger than the number of physical pages of the physical book 50. The case where the total number is larger is considered. In addition, when one or more electronic books are linked to one physical book 50 in the “browsing mode”, the physical book 50 is linked to the physical book 50 rather than the physical pages of the physical book 50. It is conceivable that the total number of electronic pages in the electronic book is larger. In such a case, the number of physical pages of the physical book 50 can be virtually increased by changing the direction in which the user holds the physical book 50 (hereinafter, the holding direction). For example, the number of physical pages of the physical book 50 is virtually increased by rotating the physical book 50 by 180 degrees in a plane parallel to each page with respect to the initial holding direction. This rotation can be repeated virtually indefinitely, thereby increasing the number of electronic pages substantially indefinitely. Although details of this point will be described later, in the following, the initial holding direction of the physical book 50 by the user is “normal holding direction”, and the holding direction when rotated 180 degrees with respect to the normal holding direction is “reverse holding”. The direction and the cumulative number of rotations are referred to as “rotations”. Whether the holding direction of the physical book 50 is the normal holding direction or the reverse holding direction is identified using a rotation marker 53 described later.

  FIG. 2 is a diagram schematically illustrating the progress of the browsing state of the physical book 50. For example, when one physical book 50 includes physical pages from a physical page (physical page number = 1) to a physical page (physical page number = n) (n is an arbitrary integer; the same applies hereinafter). An electronic page (electronic page number = 1) is linked to (physical page number = 1), an electronic page (electronic page number = 2) is linked to a physical page (physical page number = 2), and so on. An electronic page (electronic page number = n) is linked to a physical page (physical page number = n). Accordingly, in a state where the physical book 50 is held in the normal holding direction, the physical pages are sequentially turned from the physical page (physical page number = 1) to the physical page (physical page number = n), thereby converting the electronic page into the electronic page (electronic It is possible to browse sequentially from the page number = 1) to the electronic page (electronic page number = n).

  Furthermore, in the state where the physical page (physical page number = n) has been rolled up, the state in which the physical book 50 is rotated and held in the reverse holding direction is assumed, and the next physical page (physical page number = n) is rolled up. The next electronic page (electronic page number = n + 1) is linked to the physical page (physical page number = n−1). Similarly, the physical page (physical page number = 2) is connected to the electronic page (electronic page number = n + n). -2), an electronic page (electronic page number = n + n-1) is linked to a physical page (physical page number = 1). Therefore, in the state where the physical book 50 is held in the reverse holding direction, the physical page is sequentially turned from the physical page (physical page number = n−1) to the physical page (physical page number = 1), thereby converting the electronic page to the electronic page. It is possible to browse sequentially from (electronic page number = n + 1) to electronic page (electronic page number = n + n−1).

  Further, assuming that the physical book 50 is rotated and held again in the normal holding direction in the state where the physical page (physical page number = 1) has been turned, the physical page (physical page number = 1) has been turned on. The next electronic page (electronic page number = n + n) is linked to the physical page (physical page number = 2), and the subsequent electronic page (electronic page number = n−1) is connected to the physical page (physical page number = n−1). Number = n + n-1 + n-2), and an electronic page (electronic page number = n + n-1 + n-1) is linked to a physical page (physical page number = n). Therefore, in the state where the physical book 50 is held in the normal holding direction, the physical page is sequentially turned from the physical page (physical page number = 2) to the physical page (physical page number = n), so that the electronic page becomes the electronic page (electronic It is possible to browse sequentially from page number = n + n) to electronic page (electronic page number = n + n−1 + n−1).

  Similarly, by associating an electronic page with a physical page while changing the holding direction of the physical book 50, an electronic page with a virtually unlimited number of electronic pages is linked to a physical book 50 with the number of physical pages = n. It becomes possible to attach. Hereinafter, the association rule between the physical page and the electronic page by changing the holding direction of the physical book 50 in this way is referred to as a “rotation rule”.

  Note that the next electronic page is linked to the next physical page, not the physical page displayed with the holding direction changed. This is to thoroughly improve the reality by providing the user with a sense that the user is actually browsing the physical book 50 itself. However, if such an effect can be ignored, the next electronic page may be linked to the physical page displayed with the holding direction changed. In this case, if the physical book is rotated, The electronic page will change.

(Basic concept-electronic book information)
The electronic book information is electronic data of the electronic book and is created in a predetermined known format. One electronic book information corresponds to one electronic book and includes one or more electronic pages. When one electronic book includes a plurality of electronic pages, the arrangement and arrangement direction of each electronic page included in the electronic book information are the arrangement and arrangement direction of each physical page in the physical book 50 linked to the electronic book. For example, when the physical book 50 is bound by so-called left-binding, each electronic page of the electronic book information is also configured in an arrangement or arrangement direction in accordance with the left-binding. preferable. Actually, a plurality of physical books having different physical page arrangements and arrangement directions are prepared, and a physical book having an arrangement and arrangement direction matching the electronic book information is appropriately selected from the plurality of physical books. By selecting and using, consistency between the electronic book and the physical book may be achieved.

(Basic concept-physical book)
Next, the physical book 50 used in this embodiment will be described. In the present embodiment, as shown in FIG. 2, the physical book 50 includes a front cover, physical page (physical page number = 1), physical page (physical page number = 2),... Physical page (physical page number). = N), and the back cover is configured as a book bound by so-called left binding. In the following description, the X direction in FIG. 2 is described as “left-right direction”, and the Y direction in FIG. 2 is described as “up-down direction”.

(Configuration-Marker)
One “book marker” 51 is displayed in the physical book 50. In addition, one “page marker” 52 and one “rotation marker (top and bottom marker)” 53 are displayed on each physical page of the physical book 50. In addition, when it is not necessary to distinguish these book marker 51, page marker 52, and rotation marker 53 from each other, these are simply collectively referred to as “markers”.

  The “book marker” 51 is a physical book identification mark for uniquely identifying the physical book 50. The specific configuration of the book marker 51 is arbitrary. For example, the book marker 51 may be configured by a one-dimensional or two-dimensional barcode (including a QR code), or a number, a character, a color, a pattern, or the like alone. Or you may comprise in combination. Below, the example which comprised the book marker 51 by the AR (augmented reality) code printed on the front cover is demonstrated. However, the physical book 50 may be uniquely associated with the user in addition to being uniquely associated with the book marker 51. In the latter case, the book marker 51 may be omitted. Also, the book marker 51 may be omitted when the physical book is identified by the user inputting a physical book ID that uniquely identifies the physical book.

  The “page marker” 52 is a page identification mark for identifying each physical page included in the physical book 50. The specific configuration of the page marker 52 is arbitrary. For example, the page marker 52 may be configured by a one-dimensional or two-dimensional barcode (including a QR code), or a number, a character, a color, a pattern, or the like alone. Or you may comprise in combination. Below, the example which comprised the page marker 52 by AR code is demonstrated. This AR code is arranged at substantially the center position in the vertical and horizontal directions of each physical page.

  The “rotation marker” 53 is a holding direction identification for identifying the holding direction of the physical book 50 (in this embodiment, the vertical (top / bottom) direction, which is one of the above-described normal holding direction and reverse holding direction). It is a sign. The specific configuration of the rotation marker 53 is arbitrary. For example, a number, a character, a symbol, a color, a pattern, or the like may be used alone or in combination. Below, the example which comprised the rotation marker 53 by the symbol is demonstrated. As a method of identifying the holding direction of the physical book 50 using the rotation marker 53, for example, the rotation marker 53 is formed asymmetrical in the vertical direction, or the relative arrangement of the rotation marker 53 with respect to the page marker 52 is reversed from the normal holding direction. By changing the holding direction, the holding direction of the physical book 50 can be identified.

  FIG. 3 is a diagram for explaining a method of identifying the holding direction of the physical book 50 using the page marker 52 and the rotation marker 53 in the present embodiment. In the present embodiment, only the rotation marker 53 is displayed on the front surface of each physical page (the surface that is closer to the cover of the both sides of each physical page; the same applies hereinafter), and the back surface of each physical page (each Only the page marker 52 is displayed on the side of the physical page that is closer to the back cover (hereinafter the same) (in FIG. 3, for convenience of explanation, the page marker 52 is not a AR marker but a number). Show). Accordingly, one page marker 52 and one rotation marker 53 are displayed along the left-right direction for one spread constituted by a pair of adjacent physical pages. Under such a premise, a physical page (physical page number = 2) is turned as shown in FIG. 3 (b) from a state where the physical page (physical page number = 1) is opened as shown in FIG. 3 (a). Thereafter, similarly, assume that the last physical page (physical page number = n) is reached as shown in FIG. 3C and the state shown in FIG.

  In this case, the relative positional relationship between the page marker 52 and the rotation marker 53 is changed between the relationship from FIG. 3A to FIG. 3C and the relationship in FIG. The electronic book viewing apparatus 30 can recognize that the holding direction has changed. Further, in the state of FIG. 3E, since the electronic book browsing device 30 can recognize that the page has been turned after the holding direction has changed, the electronic page is virtually determined by the above rotation rule. Then, the process of moving forward by one page is performed. On the other hand, when the state shown in FIG. 3C is changed to the state shown in FIG. 3F, the relative positional relationship between the page marker 52 and the rotation marker 53 is changed from FIG. 3 and the relationship shown in FIG. 3F, the electronic book viewing apparatus 30 can recognize that the holding direction of the physical book 50 has not changed. Do the process of turning back forward only.

  The “display” of the marker means that the marker is output to a physical page of the physical book 50 so that the marker can be read by a reading unit described later. It includes printing a marker with ink on a page, attaching a marker created separately, and imprinting it like Braille. In addition, the marker is not limited to one that can be read by the user as long as it can be read by the reading unit. For example, the marker may be displayed with special ink that the user cannot visually recognize. . Further, the book marker 51 and the rotation marker 53 do not necessarily need to be fixedly displayed on the physical book 50. For example, the book marker 51 is printed on a sheet separated from the physical book 50. Accordingly, the book marker 51 may be recognized by causing the reading device 10 to read the book marker 51. Below, the example which printed each of these markers on the physical page with the ink which a user can visually recognize is demonstrated. In addition, when the physical device 50 and the holding direction can be specified by causing the reading device 10 to recognize a special operation of a predetermined user, or when a book is selected using information such as a user ID as in a user ID use selection process described later. Book marker 51 and rotation marker 53 may be omitted. Further, the rotation marker 53 may be replaced by a predetermined special user operation that can be recognized on the electronic book browsing device 30 side.

  The physical book 50 configured as described above may be produced in a plurality of books with different physical page numbers and markers, or a plurality of physical books 50 having the same physical page number and markers may be produced. In the latter case, different users own the plurality of physical books 50, so that different users can view the same electronic book at the same time.

(Basic concept-栞)
An e-book reader can be attached with “栞”. A bag is a mark that a user can attach to an arbitrary physical page among a plurality of physical pages included in the physical book 50. This bag is virtually attached in association with a physical page, and does not affect the linking of electronic pages to physical pages.

(Basic concept-clip)
A “clip” can be attached to an electronic book. A clip is a mark that a user can attach to an arbitrary physical page among a plurality of physical pages included in an electronic book. This clip is physically attached to a physical page and is different from a bag in that it may affect the linking of an electronic page to a physical page. Specifically, the clip is configured as an object that can be recognized by the electronic book browsing apparatus 30, for example, a metal clip.

  The clip attached to the physical page in this way is removed from the physical page at an arbitrary timing by the user. The operation of removing the clip attached to the physical page in this way is referred to as “declip”. In this declip, the fact that the declip has been performed is “explicit declip” that can be immediately recognized by the electronic book viewing apparatus 30 at the time when the declip is performed, and that the declip has been performed, At the time when the declip is performed, the electronic book browsing device 30 cannot recognize it immediately, and after that, when the physical page on which the declip is performed is browsed, the “implicit data” is recognized by the electronic book browsing device 30. "Clip". Specifically, a declip performed on a physical page that the user is currently browsing becomes an explicit declip, and a declip performed on a physical page that the user is not currently browsing is It becomes an implied declip.

  The concept of “clip” will be described in more detail. FIGS. 4A and 4B are diagrams conceptually showing the association state between the physical page and the electronic page. FIG. 4A is a diagram showing the association state in the initial positive holding direction, and FIG. 4B is the state of FIG. It is a figure which shows the tied state at the time of rotating the physical book 50 only 1 degree and setting it as a reverse holding direction. In FIG. 4, physical pages and physical page numbers are shown in the upper part, and electronic pages and electronic page numbers associated with the physical pages are shown in the lower part (hereinafter, the same applies to FIGS. 5 and 6). As shown in FIG. 4A, a physical page (physical page number = A) to a physical page (physical page number = P), and an electronic page (electronic page number = a1) to an electronic page (electronic page number = a16), respectively. ). Note that “a” in the electronic page number is a symbol for identifying the unit of the electronic book, and the same symbol indicates that it is the electronic page number of the electronic page included in the same electronic book. Therefore, the electronic pages (electronic page number = a1) to the electronic page (electronic page number = a16) are electronic pages included in the same electronic book, but are described later with reference to FIGS. 6 (d), 6 (e), and 6 (f). Pages (electronic page number = b1) to electronic page (electronic page number = b16) are electronic pages included in different electronic books.

  When the physical book 50 is rotated and held in the reverse holding direction after FIG. 4A, as shown in FIG. 4B, the physical page (physical page number = P) according to the rotation rule described above. To the physical page (physical page number = A), the electronic page (electronic page number = a16) to the electronic page (electronic page number = a31) are linked.

  FIG. 5 is a diagram conceptually showing the linking state between the physical page and the electronic page, (a) is a diagram showing the linking state in the initial positive holding direction, and (b) is (a). The figure which shows the state which attached the clip in the state of (b), (c) is a figure which shows the tied state at the time of rotating the physical book 50 only 1 degree from the state of (b), and making it a reverse holding direction. FIG. 5A is the same as FIG. Here, as shown in FIG. 5B, it is assumed that a clip is attached to a physical page (physical page number = G). When a clip is attached to a physical page in this way, an electronic page linked to the physical page at the time when the clip is attached is fixedly linked to the physical page. Therefore, in this example, an electronic page (electronic page number = a7) is fixedly linked to a physical page (physical page number = G). Accordingly, as shown in FIG. 5C, when the physical book 50 is subsequently rotated and held in the reverse holding direction, the physical page (physical page number = P) to the physical page (physical page number = H). In the same manner as in FIG. 4B, an electronic page (electronic page number = a24) is linked to an electronic page (electronic page number = a24), but a physical page (physical page number = G). Unlike FIG. 4B, the electronic page (electronic page number = a7) remains linked. Also, from the physical page (physical page number = F) to the physical page (physical page number = A), compared to the case of FIG. Since the electronic page number = a7) is fixedly linked, the electronic page slides by one page, and the electronic page (electronic page number = a25) is linked to the electronic page (electronic page number = a30). . Similarly, even if the number of rotations is increased, for the physical page (physical page number = G), the electronic page (electronic page number = a7) remains linked and is linked to other physical pages. Only the electronic page changes.

  Thus, the fixed state of the electronic page linking to the physical page using the clip is maintained even when another electronic book is linked to the same physical book 50. FIGS. 6A and 6B are diagrams conceptually showing the linking state between the physical page and the electronic page. FIG. 6A shows the linking state in the initial normal holding direction, and FIG. 6B shows the clip from the state of FIG. The figure which shows the state attached, (c) is a figure which shows the state by which the other electronic book was tied with respect to the physical book 50 from the state of (b). 6 (a) is the same as FIG. 5 (a), and FIG. 6 (b) is the same as FIG. 5 (b). Then, as shown in FIG. 6C, when another electronic book is linked to the physical book 50, the physical page (physical page number = A) to the physical page (physical page number = F) The electronic page (electronic page number = b1) of another electronic book is linked to the electronic page (electronic page number = b6). For the physical page (physical page number = G), FIG. Similarly, the electronic page (electronic page = a7) of the electronic book remains linked. For the next physical page (physical page number = H) to physical page (physical page number = P), an electronic page (electronic page number = a7) is fixed to the physical page (physical page number = G). Since the electronic page is skipped by one page, the next electronic page (electronic page number = b7) to the electronic page (electronic page number = b15) of the other electronic book is linked. Yes.

  Next, the concept of “explicit declip” will be described in detail. FIG. 6D is a diagram showing a state when explicit declip is performed from the state of FIG. When the clip is explicitly removed in this way, the electronic page linking state for the entire physical book 50 including the physical page to which the clip is attached is restored to the linking state when the clip is attached. To do. In this example, as shown in FIG. 6 (b), when a clip is attached, an electronic page (electronic page number ==) from a physical page (physical page number = A) to a physical page (physical page number = P). Since the electronic page (electronic page number = a16) is linked from a1), the linked state is restored also in FIG. 6 (d).

  Next, the concept of “implicit declip” will be described in detail. FIG. 6 (e) is a diagram showing a state in which an implicit declip is performed from the state of (c), and FIG. 6 (f) is a first view of the physical page to which the clip is attached after (e). It is a figure which shows the state at the time of being carried out. As shown in FIG. 6 (e), when the clip is removed implicitly, the electronic book viewing apparatus 30 cannot immediately recognize that the clip has been removed, so that the tying state is not changed. It is maintained in the same state as c). Thereafter, when the physical page (physical page number = G) to which the clip is attached is viewed for the first time, it is linked to the physical page (physical page number = G) as shown in FIG. The electronic page (electronic page number = a7) is changed to the electronic page (electronic page number = b7) linked to the physical page (physical page number = H) to be browsed next, and so on. Then, an electronic page linked to a physical page (physical page number = P) from a physical page (physical page number = H) to be browsed thereafter is changed from an electronic page (electronic page number = b8) to an electronic page ( Electronic page numbers = b16) are packed one by one.

(Configuration-Electronic book browsing system)
Next, the configuration of the electronic book browsing system 1 according to the present embodiment will be described. As shown in FIG. 1, the electronic book browsing system 1 includes a reading device 10, a display device 20, and an electronic book browsing device 30.

(Configuration-Electronic book browsing system-Reading device)
The reading device 10 is a reading unit that reads a marker displayed on each page of the physical book 50. When the display position of the electronic page is matched with the display position of the physical page, the reading device 10 is configured as a recognition unit that can recognize not only the marker but also the entire electronic page. The specific reading principle of such a reading device 10 is arbitrary. For example, when the marker is made of ink that can be visually recognized by the user, it is configured as an optical camera that optically reads the marker, or the marker Can be configured as an infrared camera that reads the marker with infrared rays or the like. In the present embodiment, the reading device 10 is configured as an optical camera. Moreover, the installation position and installation structure of the reading device 10 are also arbitrary, and can be fixed to, for example, a ceiling in a room where the user browses. However, in order to accurately read the marker on the page that the user is browsing, it is preferable to move in conjunction with the user's line of sight, so in this embodiment, the reading device 10 is mounted on the face by the user. It is configured as a small camera placed in front of the head mounted display.

(Configuration-Electronic book browsing system-Display device)
The display device 20 is display means for displaying electronic book information. The specific display principle of the display device 20 is arbitrary. For example, the display device 20 can be configured as a projector capable of projecting electronic book information onto a wall surface or a screen. However, since it is preferable to display the electronic book information at a position corresponding to each page of the physical book 50 that the user is browsing in the user's field of view, in the present embodiment, the display device 20 is displayed. It is configured as a head-mounted display in the form of glasses worn by the user on the face, and displays an electronic page or the like at a position in front of the user's eyes. The display device 20 is provided with a wireless communication unit, through which the reader 10, the display device 20, and the electronic book browsing device 30 wirelessly transmit information via the network 40. Can be sent and received.

(Configuration-electronic book browsing system-electronic book browsing device)
The electronic book browsing device 30 is a device that executes various processes for browsing an electronic book, and is configured using, for example, a known personal computer, server, personal digital assistant (PDA), mobile phone, smartphone, or the like. Has been. FIG. 7 is a block diagram functionally conceptually showing the electrical configuration of the electronic book browsing device 30. The electronic book browsing device 30 includes a storage unit 31 and a control unit 32.

  The storage unit 31 is a storage unit that stores various types of information necessary for the processing of the electronic book browsing device 30, and is configured by, for example, a hard disk or other known recording medium, and a user information database (hereinafter referred to as a database). 31a, physical book information DB 31b, electronic book basic information DB 31c, electronic book detailed information DB 31d, physical electronic correspondence information DB 31e, physical user correspondence information DB 31f, electronic user correspondence information DB 31g, physical book use state information DB 31h, book The selection linking information DB 31i, the book browsing linking information DB 31j, the bag management information DB 31k, and the clip management information DB 31m are stored. Details of each DB will be described later.

  The control unit 32 is a control unit that controls execution of various processes for browsing an electronic book. Specifically, the control unit 32 is a CPU, and various programs that are interpreted and executed on the CPU (a basic control program such as an OS). And a computer configured to include an internal memory such as a RAM for storing the program and various data. In particular, the electronic book browsing program according to the present embodiment is stored in a computer-readable recording medium, and is installed in the electronic book browsing apparatus 30 from the recording medium, thereby substantially configuring each unit of the control unit 32. To do.

  The control unit 32 includes an electronic book group selection unit 32a, an electronic book selection unit 32b, an electronic book browsing unit 32c, a bag processing unit 32d, and a clip processing unit 32e in terms of functional concept. The electronic book group selection unit 32a is an electronic book group selection unit that executes an electronic book group selection process. The electronic book selection unit 32b is an electronic book selection unit that executes an electronic book selection process. The electronic book browsing unit 32c is an electronic book browsing unit that executes an electronic book browsing process. The cocoon processing unit 32d is cocoon processing means for executing the cocoon processing. The clip processing unit 32e is clip processing means that performs clip processing. Specific functions of these units will be described later.

  Next, details of each DB of the storage unit 31 illustrated in FIG. 7 will be described. However, the information described below as information stored in each DB is merely an example, and in practice, some of the information can be omitted, other information can be included, or replaced with other information. can do.

  The user information DB 31a is a user information storage unit that stores information about the user (hereinafter referred to as user information). As shown in the configuration example of FIG. 8, the user information is configured by associating an item “user ID” and an item “password” with data corresponding to these items. Information corresponding to the item “user ID” is user identification information for uniquely identifying a user. Information corresponding to the item “password” is user authentication information for authenticating the user. In addition, the user information can include information such as the user's name, age, address, billing information, and access restrictions.

  The physical book information DB 31b is a physical book information storage unit that stores information on the physical book 50 (hereinafter, physical book information). As shown in the configuration example of FIG. 9, the physical book information includes an item “physical book ID”, an item “physical page number”, an item “book marker”, an item “page marker”, and an item “rotation marker”. Data corresponding to these items are configured to be associated with each other. Information corresponding to the item “physical book ID” is physical book identification information for uniquely identifying the physical book 50. Information corresponding to the item “physical page number” is a physical page number. Information corresponding to the item “book marker”, the item “page marker”, and the item “rotation marker” includes book marker specifying information for specifying the book marker 51 and page marker specifying for specifying the page marker 52, respectively. Information, rotation marker specifying information for specifying the rotation marker 53, for example, image data for recognizing the marker image, text data describing a marker recognition method, and a marker recognition program. In addition to this, the physical book information can include a sales price, a production company, a previous owner, and the like as information on the physical book 50.

  The electronic book basic information DB 31c is an electronic book basic information storage unit that stores basic information about an electronic book (hereinafter, electronic book basic information). As shown in the configuration example of FIG. 10, the electronic book basic information includes an item “electronic book ID”, an item “image”, an item “title”, an item “summary”, and data corresponding to these items, They are configured in association with each other. Information corresponding to the item “electronic book ID” is electronic book identification information for uniquely identifying the electronic book. The information corresponding to the item “image” is an image that serves as a reference when selecting an electronic book, and is, for example, an image of a front cover of the electronic book. The information corresponding to the item “title” is the title of the electronic book. The information corresponding to the item “summary” is summary information that serves as a reference when selecting an electronic book, such as the author and summary of the electronic book. In addition, the electronic book basic information may include a sales price, an ISBN code, a previous owner, access restriction information, and the like as information on the electronic book.

  The electronic book detailed information DB 31d is electronic book detailed information storage means (electronic book information storage means) that stores detailed information about the electronic book (hereinafter, electronic book detailed information). As shown in the configuration example of FIG. 11, the electronic book detailed information corresponds to the item “electronic book ID”, the item “electronic page number”, the item “content”, and the data corresponding to each of these items. It is configured with. The information corresponding to the item “electronic book ID” is the same as the information corresponding to the same item name. The information corresponding to the item “electronic page number” is the electronic page number of the electronic book. Information corresponding to the item “content” is content data of each electronic page of the electronic book, for example, image data and document data of each electronic page. In addition, the electronic book detailed information can include information such as the type and amount of content data.

  The physical / electronic correspondence information DB 31e is a physical / electronic correspondence information storage unit that stores information related to the correspondence between the physical book 50 and the electronic book (hereinafter, physical-electronic correspondence information). As shown in the configuration example of FIG. 12, the physical / electronic correspondence information is configured by associating an item “physical book ID” and an item “electronic book ID” with data corresponding to these items. . The information corresponding to the item “physical book ID” and the information corresponding to the item “electronic book ID” are the same as the information corresponding to the same item name. In addition, the physical / electronic correspondence information can include information such as the date and time when the physical / electronic correspondence information was recorded.

  The physical user correspondence information DB 31f is a physical user correspondence information storage unit that stores information on the correspondence relationship between the physical book 50 and the user (hereinafter, physical user correspondence information). As shown in the configuration example of FIG. 13, the physical user correspondence information is configured by associating an item “physical book ID” and an item “user ID” with data corresponding to these items. Information corresponding to the item “physical book ID” and information corresponding to the item “user ID” are the same as the information corresponding to the same item name. In addition, the physical user correspondence information may include information such as the date and time when the physical user correspondence information was recorded.

  The electronic user correspondence information DB 31g is an electronic user correspondence information storage unit that stores information related to the correspondence between electronic books and users (hereinafter referred to as electronic user correspondence information). As shown in the configuration example of FIG. 14, the electronic user correspondence information is configured by associating an item “electronic book ID” and an item “user ID” with data corresponding to these items. Information corresponding to the item “electronic book ID” and information corresponding to the item “user ID” are the same as the information corresponding to the same item name. In addition, the electronic user correspondence information can include information such as the date and time when the electronic user correspondence information was recorded.

  The physical book use state information DB 31h is a physical book use state information storage unit that stores information on the use state of the physical book 50 (hereinafter, physical book use state information). As shown in the configuration example of FIG. 15, the physical book use state information includes an item “physical book ID”, an item “physical page number”, an item “number of rotations”, and an item “user ID”. Corresponding data are associated with each other. The information corresponding to the item “physical book ID”, the information corresponding to the item “physical page number”, and the information corresponding to the item “user ID” are the same as the information corresponding to the same item name. Information corresponding to the item “number of rotations” is information for specifying the number of rotations of the physical book 50. In addition to this, the physical book usage status information can include information such as the date and time when the physical book usage status information was recorded.

  The book selection linking information DB 31i is a book selection linking information storage unit that stores information (hereinafter referred to as book selection linking information) regarding the linking state of the electronic book with respect to the physical book 50 when the electronic book is selected. As shown in the configuration example of FIG. 16, the book selection linking information includes an item “physical book ID”, an item “physical page number”, an item “electronic book ID”, and data corresponding to these items, They are configured in association with each other. The information corresponding to the item “physical book ID”, the information corresponding to the item “physical page number”, and the information corresponding to the item “electronic book ID” are the same as the information corresponding to the same item name. In addition to this, the book selection linking information can include information such as the date and time when the book selection linking information was recorded.

  The book browsing linking information DB 31j is a book browsing linking information storage unit that stores information (hereinafter referred to as book browsing linking information) relating to the linking state of the electronic book with respect to the physical book 50 when browsing the electronic book. As shown in the configuration example of FIG. 17, the book browsing association information includes an item “physical book ID”, an item “physical page number”, an item “electronic book ID”, and an item “electronic page number”. Data corresponding to the items are configured to be associated with each other. The information corresponding to the item “physical book ID”, the information corresponding to the item “physical page number”, the information corresponding to the item “electronic book ID”, and the information corresponding to the item “electronic page number” are the same items described above. It is the same as the information corresponding to the name. In addition, information such as the date and time when the book browsing association information is recorded can be included in the book browsing association information.

  The cocoon management information DB 31k is cocoon management information storage means for storing information for managing cocoons (hereinafter, cocoon management information). As shown in the configuration example of FIG. 18, the bag management information is configured by associating an item “physical book ID” and an item “physical page number” with data corresponding to these items. The information corresponding to the item “physical book ID” and the information corresponding to the item “physical page number” are the same as the information corresponding to the same item name. In addition, the wrinkle management information can include information such as the date and time when the wrinkle management information is recorded.

  The clip management information DB 31m is clip management information storage means for storing information for managing clips (hereinafter referred to as clip management information). As shown in the configuration example of FIG. 19, the clip management information includes an item “physical book ID”, an item “physical page number”, an item “electronic book ID”, and an item “electronic page number”. Corresponding data are associated with each other. The information corresponding to the item “physical book ID”, the information corresponding to the item “physical page number”, the information corresponding to the item “electronic book ID”, and the information corresponding to the item “electronic page number” are the same items described above. It is the same as the information corresponding to the name. In addition, the clip management information can include information such as the date and time when the clip management information was recorded.

(Configuration-Network)
The network 40 is an arbitrary network such as a LAN or the Internet. However, the reading device 10 and the display device 20 and the electronic book browsing device 30 may be connected by wire.

(processing)
Next, various processes performed using the electronic book browsing system 1 configured as described above will be described. This process is roughly divided into an electronic book group selection process, an electronic book selection process, an electronic book browsing process, a bag attachment process, a bag removal process, a clip process, an explicit declip process, and an implicit declip process. Hereinafter, each of these processes will be described sequentially. In this description, each of the user information DB 31a, the physical book information DB 31b, the electronic book basic information DB 31c, the electronic book detailed information DB 31d, the physical electronic correspondence information DB 31e, the physical user correspondence information DB 31f, and the electronic user correspondence information DB 31g in advance. Assume that information is stored in an arbitrary manner. In addition, a user operation for activating or switching between the processes can be performed by causing the reading device 10 to read a predetermined special marker or a predetermined special user action, for example ( The same applies to user operations below).

(Processing-electronic book group selection processing)
First, the electronic book group selection process will be described. This electronic book group selection process is a process for selecting one or more electronic books (hereinafter referred to as an electronic book group) that are candidates for selection, and is mainly executed by the electronic book group selection unit 32a. In this electronic book group selection process, the user performs a process of selecting an electronic book group based on the book marker 51 (when one or more electronic books are uniquely associated with the physical book 50). Processing: book marker use selection processing) and processing for selecting an electronic book group based on the user ID (processing performed when one or more electronic books are uniquely associated with the user ID) Hereinafter, the user ID use selection process) is started by performing a user operation.

(Processing-electronic book group selection processing-book marker use selection processing)
FIG. 20 is a flowchart of the book marker use selection process (in the following description of each process, step is abbreviated as “S”). When the book marker use selection process is activated by a user operation, the electronic book group selection unit 32a monitors whether or not the book marker 51 has been read by the reading device 10 (SA1). Specifically, the electronic book group selection unit 32a determines whether or not the book marker 51 included in the physical book information DB 31b exists in the image information output from the reading device 10 by a known image analysis. Specify by method.

  When the book marker 51 is read (SA1, Yes), the electronic book group selection unit 32a determines whether the read book marker 51 is different from the latest book marker 51 that has been read before. It is determined whether or not (SA2). Specifically, the electronic book group selection unit 32a sequentially stores the book marker 51 read in SA1 in the storage unit 31 and stores the marker in the storage unit 31 each time the book marker 51 is newly read. By comparing with the latest marker stored, it is determined whether or not the book marker 51 is different.

When the book marker 51 is not different (SA2, No), the electronic book group selection unit 32a has already completed the selection of the electronic book group and does not need to select a new electronic book group. Return to SA1.
On the other hand, when the book marker 51 is different (SA2, Yes), the electronic book group selection unit 32a has not yet completed the selection of the electronic book group, or the already selected electronic book group is changed to another one. The physical book ID corresponding to the read book marker 51 is acquired from the physical book information DB 31b as the one that needs to be changed to the electronic book group, and specified in advance by the user or the like as the one corresponding to the acquired physical book ID. All the electronic book IDs acquired are acquired from the physical electronic correspondence information DB 31e (SA3).

  Here, when one or more electronic book IDs corresponding to the physical book ID exist (SA4, Yes), the electronic book group is specified by the one or more electronic book IDs, so the electronic book group selection unit 32a. Ends the book marker use selection process.

  On the other hand, when there is no electronic book ID corresponding to the physical book ID (SA4, No), the electronic book group selection unit 32a assumes that the electronic book is not yet associated with the physical book ID. A message prompting the input of the book ID is displayed via the display device 20 (SA5). When the user who has read this message inputs one or more electronic book IDs, the electronic book group selection unit 32a associates the physical book ID acquired in SA3 and the input electronic book ID with each other in the physical electronic format. It is stored in the correspondence information DB 31e (SA6). In this case, since the electronic book group is specified by the one or more stored electronic book IDs, the electronic book group selection unit 32a ends the book marker use selection process. The input by the user can be performed, for example, via an input device (not shown), and information is transmitted from the input device to the electronic book browsing device 30 via the network 40 (hereinafter, the same applies to the input by the user). .

(Processing-electronic book group selection processing-user ID use selection processing)
FIG. 21 is a flowchart of the user ID use selection process. When the user ID use selection process is activated by a user operation, the electronic book group selection unit 32a displays a message prompting the user ID to be input via the display device 20 (SB1). When the user who has read this message inputs a user ID, the electronic book group selection unit 32a obtains all electronic book IDs specified in advance by the user or the like as corresponding to the user ID from the electronic user correspondence information DB 31g. Obtain (SB2).

  Here, when one or more electronic book IDs corresponding to the user ID exist (SB3, Yes), the electronic book group is specified by the one or more electronic book IDs. Then, the user ID use selection process is terminated.

  On the other hand, when there is no electronic book ID corresponding to the user ID (SB3, No), the electronic book group selection unit 32a assumes that the electronic book is not yet associated with the user ID. Is displayed via the display device 20 (SB4). When the user who has read this message inputs one or more electronic book IDs, the electronic book group selection unit 32a associates the user ID input in SB2 and the input electronic book ID with each other. It is stored in the correspondence information DB 31g (SB5). In this case, since the electronic book group is specified by the one or more stored electronic book IDs, the electronic book selection unit 32b ends the user ID use selection process.

  In the book marker use selection process and the user ID use selection process, the user inputs a user ID and a password as necessary, and the user ID and password are collated with the user ID and password stored in the user information DB 31a. Thus, user authentication may be performed, and various operations may be allowed only for a user who has passed user authentication (the same applies to each process described below).

  In addition, when the user inputs a physical book ID, in order to check whether or not the user has the right to use the physical book 50 identified by the physical book ID, A predetermined password indicating the right may be input, or a billing process for purchasing the right may be performed, and input of the electronic book ID may be permitted only when the right can be confirmed. When the ownership can be confirmed in this way, the physical book ID and the user ID are stored in the physical user correspondence information DB 31f, and thereafter, with reference to the physical user correspondence information DB 31f, the presence or absence of ownership You may make it confirm. In addition, when the ownership of the physical book 50 is bought and sold by other known methods, the ownership can be managed by updating the contents of the physical user correspondence information DB 31f.

  Similarly, when the user inputs an electronic book ID, in order to check whether or not the user has the right to view the electronic book identified by the electronic book ID, A predetermined password indicating the right may be input, or a billing process for purchasing the right may be performed, and input of the electronic book ID may be permitted only when the right can be confirmed. When the ownership can be confirmed in this way, the electronic book ID and the user ID are stored in the electronic user correspondence information DB 31g, and thereafter, with reference to the electronic user correspondence information DB 31g, the presence or absence of the ownership You may make it confirm. When the ownership of the electronic book is bought and sold by other known methods, the ownership can be managed by updating the contents of the electronic user correspondence information DB 31g.

  In this way, by managing the ownership of the physical book and the ownership of the electronic book, the user can transfer or give the physical book or the electronic book to another user. For example, a user who wants to give a physical book (hereinafter referred to as a presenter user) presents it to another user (hereinafter referred to as a present destination user) with the physical book ID and password of the physical book. The present user logs in to the electronic book browsing apparatus 30 with his / her user ID and password, and then inputs the physical book ID and password of the physical book. Then, the electronic book group selection unit 32a of the electronic book browsing device 30 stores the physical book ID of the physical book in the physical user correspondence information DB 31f in association with the user ID of the present destination user, and also stores the physical book of the physical book. The user ID of the presenting user who has been associated with the ID is deleted from the physical user correspondence information DB 31f. As a result, the ownership of the physical book can be electronically transferred from the present source user to the present destination user.

  In addition, a physical book and an electronic book can be transferred or presented in a state of being associated with each other. For example, the present source user completes the electronic book group selection process and delivers the physical book to the present destination user in a state where a plurality of electronic books are associated with one physical book. At this time, the physical book ID and password of the physical book and the electronic book ID and password of each of the plurality of electronic books are attached. The present destination user logs in to the electronic book browsing apparatus 30 with his / her user ID and password, and then inputs the physical book ID and password of the physical book and the electronic book ID and password of the plurality of electronic books. Then, the electronic book group selection unit 32a of the electronic book browsing device 30 stores the physical book ID of the physical book in the physical user correspondence information DB 31f in association with the user ID of the present user, and also stores the plurality of electronic books. The electronic book ID is stored in the electronic user correspondence information DB 31g in association with the user ID of the present user. In addition, the electronic book group selection unit 32a deletes the present user ID corresponding to the physical book ID of the physical book from the physical user correspondence information DB 31f and supports the electronic book IDs of the plurality of electronic books. The user ID of the present user who has been deleted is deleted from the electronic user correspondence information DB 31g. This makes it possible to move electronically from the present source user to the present destination user as if the ownership of the physical book and the ownership of the electronic book correspond to each other. For example, in this case, the entire library composed of a plurality of favorite electronic books of the present source user can be presented to the present destination user in a lump.

  In addition, each process may be automatically ended when a predetermined end condition is met, for example, when reading of the book marker 51 is not performed even after a predetermined time between the processes. The same applies to each processing described below).

(Processing-Electronic book selection processing)
Next, the electronic book selection process will be described. This electronic book selection process is a process for selecting an electronic book to be actually browsed from the electronic book group selected in the electronic book group selection process, and is a process in the above-described selection mode. This is executed by the book selection unit 32b. In addition, when there is only one electronic book selected in the electronic book group selection process, the electronic book selection process may be omitted. FIG. 22 is a flowchart of electronic book selection processing.

  When the electronic book selection process is activated by a user operation after the completion of the electronic book group selection process, the electronic book selection unit 32b manages the usage state of the physical book 50 currently used by the user. A new record in the information DB 31h is generated, and the generated record is stored in the physical book use state information DB 31h (SC1). At this time, the physical book ID used is the one acquired in SA1 of FIG. 20 in the book marker use selection process. Alternatively, if the physical book ID is not yet specified because the user marker use selection process is performed instead of the book marker use selection process, the identification is performed in the same manner as SA1 to SA2 in FIG. It is specified by receiving an ID (the same applies hereinafter). The physical page number is an initial value = NULL, and the rotational speed is an initial value = 0. As the user ID, the one acquired in SB1 of FIG. 21 in the user ID use selection process is used. Alternatively, when the user ID is not yet specified because the book marker use selection process is performed instead of the user ID use selection process, the user is requested to input the user ID as in SB1 of FIG. Specify (same below).

  Next, the electronic book selection unit 32b associates each electronic book included in the electronic book group selected in the electronic book group selection process with each physical page of the physical book 50 currently used by the user ( SC2). For example, the electronic book selection unit 32b selects the electronic book ID of the first electronic book selected on the basis of any standard from the electronic book IDs selected in the electronic book group selection process, and uses the physical book usage state in SC1. Linked to the first physical page (physical page number = 1) of the physical book 50 identified by the physical book ID stored in the information DB 31h, the electronic book ID of the second electronic book is assigned to the next physical book 50. Are linked to the physical page (physical page number = 2), and similarly, all the electronic books included in the electronic book group selected in the electronic book group selection process are linked. At this time, the number of physical pages of the physical book 50 is specified by referring to the physical book information DB 31b based on the physical book ID stored in the physical book use state information DB 31h in SC1. In addition, when the number of electronic books exceeding the number of physical pages is linked, the above rotation rule is applied, and a plurality of electronic books are linked to one physical page as necessary. And in order to record the result linked | related in this way, the new record of book selection linked | related information DB31i is produced | generated by these physical book ID, physical page number, and electronic book ID, The said produced | generated record is produced | generated. It is stored in the book selection linking information DB 31i.

  Next, the electronic book selection unit 32b monitors whether or not the page marker 52 has been read by the reading device 10 (SC3). Specifically, the electronic book selection unit 32b includes the page marker of the physical book 50 identified by the physical book ID stored in the physical book usage state information DB 31h in SC1 in the image information output from the reading device 10. Whether or not 52 exists is specified by a known image analysis method. At this time, the page marker 52 is acquired by referring to the physical book information DB 31b based on the physical book ID. When the page marker 52 can be specified (SC3, Yes), the electronic book selection unit 32b determines whether the page marker 52 is different from the latest page marker 52 specified before. Is determined (SC4). Specifically, the page marker 52 read in SC3 is sequentially stored in the storage unit 31, and each time the page marker 52 is newly read, the marker is compared with the latest marker stored in the storage unit 31. Thus, it is determined whether or not the page marker 52 is different.

If the page marker 52 is not different (No in SC4), the electronic book selection unit 32b assumes that the selection of the electronic book has already been completed and it is not necessary to select a new electronic book. Return.
On the other hand, when the page marker 52 is different (SC4, Yes), the electronic book selection unit 32b has not yet completed selection of the electronic book, or has already selected the electronic book as another electronic book. As what needs to be changed, the physical page number corresponding to the page marker 52 read in SC3 is specified with reference to the physical book information DB 31b (SC5). And whenever it specifies in this way, the electronic book selection part 32b updates the physical page number in physical book use condition information DB31h (SC6).

  Also, the electronic book selection unit 32b determines whether or not the physical book 50 has been rotated (SC7). Specifically, when reading the page marker 52 in SC3, the electronic book selection unit 32b reads the rotation marker 53 at the same time, and based on the relative positional relationship between the rotation marker 53 and the page marker 52, the physical book 50 holding directions are specified, and the holding directions are sequentially stored in the storage unit 31. Each time the holding direction is newly specified, the holding direction is compared with the latest holding direction stored in the storage unit 31. If the holding direction is not different, the physical book 50 is not rotated. If the holding direction is different, it is determined that the physical book 50 has been rotated. The rotation marker 53 is read with reference to the rotation marker 53 of the physical book information DB 31b. If it is determined that the rotation has been performed (SC7, Yes), the electronic book selection unit 32b updates the rotation number by incrementing the rotation number in the physical book use state information DB 31h by one (SC8). ).

  Next, the electronic book selection unit 32b specifies the electronic book ID associated with the physical page number specified in SC5 (SC9). Specifically, the electronic book selection unit 32b selects the book selection association information DB 31i based on the physical page number specified in SC5, the rotation number acquired by referring to the physical book use state information DB 31h, and a predetermined rotation rule. The electronic book ID associated with the physical page number specified in SC5 is specified.

  Thereafter, the electronic book selection unit 32b causes the display device 20 to display the title and summary of the electronic book corresponding to the electronic book ID specified in SC9 (SC10). Specifically, the electronic book selection unit 32b acquires an image, a title, and an outline corresponding to the specified electronic book ID from the electronic book basic information DB 31c, and outputs the acquired image and the like to the display device 20. The display device 20 displays these images and the like. At this time, the display by the display device 20 is preferably performed by specifying the position and orientation of the physical page currently opened by the user via the reading device 10 and displaying the physical page in such a position and orientation as to be superimposed on the physical page. (Hereafter, the same applies to the display by the display device 20).

  Next, the electronic book selection unit 32b determines whether or not a predetermined user operation for selecting an electronic book to be browsed has been performed (SC11), and repeats SC2 to SC10 until the user operation is performed (SC11, No). . By performing such processing, each time the user hits the physical page of the physical book 50 with a finger, the user can see the image, title, and outline of the electronic book linked to the physical page. It is possible to easily select an electronic book to be browsed from among the electronic books.

  And when user operation is performed (SC11, Yes), since the electronic book of browsing object is specified by electronic book ID specified by SC10 at that time, the electronic book selection part 32b is electronic book selection. The process ends. In this electronic book selection process, a plurality of electronic books may be selected for one physical book 50. In this case, SC3 to SC11 may be repeated a plurality of times.

(Processing-Electronic book browsing process)
Next, the electronic book browsing process will be described. This electronic book browsing process is a process for browsing the electronic book selected in the electronic book selection process, and is a process in the above-described browsing mode, and is mainly executed by the electronic book browsing unit 32c. FIG. 23 is a flowchart of the electronic book browsing process.

  When the electronic book browsing process is activated by a user operation after the electronic book selection process, the electronic book browsing unit 32c selects each of the electronic books selected in the electronic book selection process for each physical page of the physical book 50. Link pages (SD1). For example, the electronic book browsing unit 32c acquires an electronic page number corresponding to the electronic book ID selected in the electronic book selection process from the electronic book detailed information DB 31d. Then, the electronic book browsing unit 32c assigns the electronic book to the first physical page (physical page number = 1) of the physical book 50 identified by the physical book ID stored in the physical book use state information DB 31h in SC1 of FIG. The first electronic page (electronic page number = 1) is linked, and the next physical page (physical page number = 2) of the physical book 50 is linked to the next electronic page (electronic page number = 2) of the electronic book. Thereafter, in the same manner, linking is performed until reaching the last electronic page of the electronic book. In the electronic book selection process, when a plurality of electronic books are selected for one physical book 50, the associating order in the plurality of electronic books is automatically set based on a predetermined arbitrary standard. After identifying and linking the first electronic book from the first electronic page to the last electronic page, the second electronic book is linked from the first electronic page to the last electronic page, and so on. In addition, all electronic books are linked. At this time, when the total number of electronic pages of the electronic book exceeds the number of physical pages of the physical book 50, the rotation rule is applied to perform association. Then, the electronic book selection unit 32b uses the physical book ID, the physical page number, the electronic book ID, and the electronic page number to record the result of the association in this way, so that the new information in the book browsing association information DB 31j is recorded. A record is generated, and the generated record is stored in the book browsing association information DB 31j.

  Next, the electronic book browsing unit 32c performs SD2 to SD7 similarly to SC3 to SC8 of the electronic book selection process. SD8 to SD10 will be described later. And the electronic book browsing part 32c specifies the electronic page number linked | related with the physical page number specified by SD4 (SD11). Specifically, the electronic book browsing unit 32c, based on the physical page number specified in SD4, the rotation number acquired by referring to the physical book use state information DB 31h, and a predetermined rotation rule, the book browsing association information DB 31j. , The electronic page number associated with the physical page number specified in SD4 is specified.

  Thereafter, the electronic book browsing unit 32c displays content corresponding to the electronic page number specified in SD11 on the display device 20 (SD12). Specifically, the electronic book browsing unit 32c acquires content corresponding to the electronic page number specified in SD11 from the electronic book detailed information DB 31d, outputs the acquired content to the display device 20, and the display device 20 Display this content.

  Next, the electronic book browsing unit 32c determines whether or not a predetermined user operation for ending browsing has been performed (SD13), and repeats SD2 to SD13 until a user operation is performed (SD13, No). By performing such processing, each time a user hits a physical page of the physical book 50 with a finger, the user can view the electronic page associated with the physical page, and can easily browse the electronic book. It becomes possible. Then, when a user operation is performed (SD13, Yes), the electronic book browsing unit 32c ends the electronic book browsing process.

(Processing-栞 mounting process)
Next, the hook attachment process will be described. This bag attachment process is a process for attaching a bag to the electronic book being browsed in the electronic book browsing process, and is started as an interruption process for the electronic book browsing process, and is mainly executed by the bag processing unit 32d. Is done.

  In the state where the physical page is being browsed, when the heel attachment process is activated by a user operation, the heel processing unit 32d is configured by associating the physical book ID and the physical page number corresponding to the physical page being browsed. The generated new record is generated, and the generated record is stored in the bag management information DB 31k. At this time, the physical book ID and the physical page number are acquired from the physical book use state information DB 31h.

  When records are stored in the bag management information DB 31k as described above, in the electronic book browsing process, the electronic book browsing unit 32c acquires the records of the bag management information DB 31k every predetermined time, and the physical content included in the acquired records. An unshown bag is virtually displayed at a position corresponding to the page number. The position is determined by, for example, storing information specifying the relationship between the overall shape of the physical book 50 and the position of each physical page in the shape in the storage unit 31 in advance, and this information as necessary. Can be done by referring to. The virtual bag is displayed not only when the physical page to which the bag is attached is browsed but also when the physical page is loaded. 24A and 24B are diagrams illustrating the physical book 50 in a state where a bag is displayed. FIG. 24A is a diagram illustrating a state in which a bag is displayed on the physical page being viewed, and FIG. It is a figure which shows the state by which 栞 was displayed on the page. In FIGS. 24 (a) and 24 (b), 符号 is denoted by reference numeral 54. In the user's field of view, the content of the electronic page is actually displayed at the position of the physical page. However, in FIGS. 24A and 24B, the physical page is left as it is for the convenience of illustration. Show. Therefore, the user can easily grasp the position of a desired physical page using this bag as a mark. This completes the hook attachment process.

(Processing-Removal of sputum)
Next, the bag removal process will be described. This bag removal process is a process for removing a bag from the electronic book being browsed in the electronic book browsing process, and is started as an interruption process for the electronic book browsing process, and is mainly executed by the bag processing unit 32d. Is done.

  In a state where the physical page with the heel attached by the heel attachment process is being browsed, when the heel removal process is activated by a user operation, the heel processing unit 32d has the physical book ID corresponding to the physical page being browsed. And a record configured in association with the physical page number is deleted from the bag management information DB 31k. At this time, the physical book ID and the physical page number are acquired from the physical book use state information DB 31h.

  Thus, when a record is deleted from the bag management information DB 31k, in the electronic book browsing process, the electronic book browsing unit 32c erases the bag that is virtually displayed at the position of the physical page number of the record. This completes the heel removal process.

(Processing-Clip processing)
Next, clip processing will be described. This clip process is a process for attaching a clip to the electronic book being browsed in the electronic book browsing process, and is started as an interrupt process for the electronic book browsing process, and is mainly the electronic book browsing unit 32c. And executed by the clip processing unit 32e. FIG. 25 is a flowchart of clip processing.

  In the electronic book browsing process, the electronic book browsing unit 32c monitors the presence of a clip attachment operation by the user by the reading device 10. Specifically, the electronic book browsing unit 32c specifies whether or not a clip exists in the image information output from the reading device 10 every predetermined time by a known image analysis method. For this purpose, for example, an image of a clip that may be used by the user is stored in the storage unit 31 in advance. Then, after the image information in which the clip does not exist is acquired, the image information in which the clip exists is acquired within a predetermined time thereafter, and these two pieces of image information exclude the clip portion. If they can be identified, it is determined that the user has attached a clip, and the clip processing by the clip processing unit 32e is started.

  The clip processing unit 32e includes a physical book ID and a physical page number corresponding to a physical page (a physical page being browsed by the user at that time) on which the clip is attached, and an electronic document linked to the physical page. A new record configured by associating the electronic book ID and the electronic page number corresponding to the page is generated, and the generated record is stored in the clip management information DB 31m (SE1). At this time, the physical book ID and the physical page number are acquired from the physical book use state information DB 31h, and the electronic book ID and the electronic page number are based on the acquired physical book ID and the physical page number. Get from.

  Next, the clip processing unit 32e updates the association between each physical page of the physical book 50 and each electronic page of the electronic book performed in SD1 of the electronic book browsing process of FIG. 23 (SE2). That is, all the electronic page numbers corresponding to the physical page numbers included in the new record stored in the clip management information DB 31m among the electronic page numbers stored in the book browsing association information DB 31j are stored in the record. Rewrite to the electronic page number included. This completes the clip process.

  Therefore, in the subsequent electronic book browsing process, the electronic book browsing unit 32c is included in the record stored in the clip management information DB 31m regardless of the rotation speed when the physical page to which the clip is attached is being browsed. The content of the electronic page corresponding to the electronic page number is displayed on the display device 20.

(Processing-Explicit declip processing)
Next, explicit declip processing will be described. This explicit declip process is a process when the clip for the electronic book being browsed in the electronic book browsing process is explicitly removed, and is started as an interrupt process for the electronic book browsing process. It is mainly executed by the electronic book browsing unit 32c and the clip processing unit 32e. FIG. 26 is a flowchart of the explicit declip process.

  In the electronic book browsing process, the electronic book browsing unit 32c monitors the presence or absence of a clip removal operation by the user with the reading device 10. Specifically, the electronic book browsing unit 32c specifies whether or not a clip exists in the image information output from the reading device 10 every predetermined time by a known image analysis method. Then, after the image information in which the clip exists is acquired, the image information in which the clip does not exist is acquired within a predetermined time, and these two pieces of image information except for the clip portion are identified. If it is possible, it is determined that the user has performed the clip removal operation, and the explicit declip processing by the clip processing unit 32e is started.

  The clip processing unit 32e is a link between each physical page of the physical book 50 and each electronic page of the electronic book performed in SD1 of the electronic book browsing process of FIG. 23, and is updated by subsequent clip processing. The attachment is updated again (SF1). That is, the physical book ID and physical page number corresponding to the physical page from which the clip has been removed (the physical page being browsed by the user at that time) are acquired from the physical book use state information DB 31h, and the book browsing association information Of the electronic page numbers stored in the DB 31j, all electronic pages corresponding to the combination of the acquired physical book ID and physical page number are restored to the electronic page before the clip is attached. The electronic page before the clip is attached is acquired from the clip management information DB 31m based on the combination of the acquired physical book ID and physical page number.

  Thereafter, the clip processing unit 32e deletes the record including the physical book ID and the physical page number corresponding to the physical page from which the clip has been removed from the clip management information DB 31m (SF2). This ends the explicit declip process.

  Accordingly, in the electronic book browsing process, the electronic book browsing unit 32c causes the display device 20 to display the contents of the electronic page before the clip is attached in the state where the physical page from which the clip has been removed is being browsed. become.

(Processing-Implicit declip processing)
Finally, the implicit declip process will be described. This implicit declip process is a process in a case where a clip for an electronic book being browsed in the electronic book browsing process is implicitly removed, and is executed as part of the electronic book browsing process. It is mainly executed by the electronic book browsing unit 32c and the clip processing unit 32e.

  After SD7 of the electronic book browsing process of FIG. 23, the electronic book browsing unit 32c determines whether or not the user has implicitly removed the clip for the physical page corresponding to the physical page number specified in SD4. (SD8). Specifically, the electronic book browsing unit 32c determines whether or not the physical page number specified in SD4 is included in the clip management information DB 31m. If included, the electronic book browsing unit 32c is acquired by the reading device 10 when reading SD2. It is determined whether or not the clip is included in the image information. If not, it is determined that the clip has been removed implicitly. If it is determined that the clip has been implicitly removed (SD8, Yes), the implicit declip process by the clip processing unit 32e is started.

  The clip processing unit 32e associates each physical page of the physical book 50 and each electronic page of the electronic book performed in SD1 and updates the association updated in subsequent clip processing (SD9). ). That is, the physical book ID and physical page number corresponding to the physical page from which the clip has been removed (the physical page being browsed by the user at that time) are acquired from the physical book use state information DB 31h, and the book browsing association information Among the electronic page numbers stored in the DB 31j, an electronic page corresponding to the combination of the acquired physical book ID and physical page number is changed to an electronic page corresponding to the physical page number immediately after the physical page number. The electronic pages corresponding to the physical page numbers after that are rewritten one by one.

  Thereafter, the clip processing unit 32e deletes the record including the physical book ID and the physical page number corresponding to the physical page from which the clip has been removed from the clip management information DB 31m (SD10). This completes the implicit declip process.

  Therefore, in the electronic book browsing process, when the physical page from which the clip has been removed is browsed, the electronic book browsing unit 32c is the content of the electronic page in a state of being linked as in the case where the clip is not attached. Is displayed on the display device 20.

(Modification to the embodiment)
Although the embodiments of the present invention have been described above, the specific configuration and means of the present invention can be arbitrarily modified and improved within the scope of the technical idea of each invention described in the claims. Can do. Hereinafter, such a modification will be described.

(Modification-About distribution and integration)
Further, each of the electrical components described above is functionally conceptual and does not necessarily need to be physically configured as illustrated. In other words, the specific form of distribution / integration of each part is not limited to the one shown in the figure, and all or a part thereof may be functionally or physically distributed / integrated in arbitrary units according to various loads and usage conditions. Can be configured. For example, a part of the functions of the electronic book browsing device 30 may be provided to the reading device 10 or the display device 20, or the electronic book browsing device 30 may be configured by a plurality of computers.

(About linking physical pages and electronic pages)
In the above-described embodiment, in the electronic book browsing process, each electronic page of the electronic book is linked to each physical page of the physical book 50, and a record for specifying the linkage result is stored in the book browsing linked information DB 31j. After that, the electronic page to be displayed on the display device is specified, but each time it is necessary to specify the electronic page, the electronic page may be linked to the physical page. The information DB 31j can be omitted.

DESCRIPTION OF SYMBOLS 1 Electronic book browsing system 10 Reading apparatus 20 Display apparatus 30 Electronic book browsing apparatus 31 Memory | storage part 31a User information DB
31b Physical book information DB
31c E-book basic information DB
31d Electronic book detailed information DB
31e Physical / Electronic Information DB
31f Physical user correspondence information DB
31g Electronic user information DB
31h Physical book usage state information DB
31i Book selection linking information DB
31j Book Browsing Information DB
31k 栞 management information DB
31m clip management information DB
32 control unit 32a electronic book group selection unit 32b electronic book selection unit 32c electronic book browsing unit 32d 栞 processing unit 32e clip processing unit 40 network 50 physical book 51 book marker 52 page marker 53 rotation marker 54 栞

Claims (4)

An electronic book browsing device for browsing an electronic book,
A page marker displayed on each of the plurality of physical pages to identify a plurality of physical pages of the physical book and a plurality of physical pages to identify the plurality of physical pages of the physical book. Physical book information storage means for storing physical page numbers in association with each other;
In order to identify a plurality of electronic pages of the electronic book, an electronic page number assigned to each of the plurality of electronic pages and a content of each of the plurality of electronic pages of the electronic book are stored in association with each other. Electronic book information storage means for
When a page marker displayed on a physical page browsed by a user among a plurality of physical pages of the physical book is read by a predetermined reading unit, a physical page number corresponding to the read page marker Is acquired from the physical book information storage means, the rotation number that is the number of rotations of the physical book by the user is specified by a predetermined method, and based on the acquired physical page number and the specified rotation number, The electronic page number of the electronic page associated with the physical page being browsed is specified, the content of the electronic page corresponding to the specified electronic page number is acquired from the electronic book information storage means, and the acquired content is Electronic book browsing means to be displayed on a predetermined display means;
An electronic book browsing apparatus comprising: Rotational speed information storage means for storing rotational speed information for specifying the rotational speed,
The electronic book browsing means includes:
When a rotation marker displayed on each of a plurality of physical pages of the physical book is read by the reading unit in order to specify a holding direction of the physical book by the user, the reading is performed based on the read rotation marker. It is determined whether or not the physical book has been rotated, and when it is determined that the physical book has been rotated, the rotation number information in the rotation number information storage unit is updated,
When a page marker displayed on a physical page browsed by a user among a plurality of physical pages of the physical book is read by a predetermined reading unit, a physical page number corresponding to the read page marker Is acquired from the physical book information storage means, the rotation speed is specified based on the rotation speed information stored in the rotation speed information storage means, and the acquired physical page number and the specified rotation speed are Based on the electronic page number of the electronic page associated with the physical page being browsed, the content of the electronic page corresponding to the specified electronic page number is acquired from the electronic book information storage means, the acquisition Display the selected content on a predetermined display means,
The electronic book browsing apparatus according to claim 1. When a clip is attached to a physical page viewed by a user among a plurality of physical pages of the physical book and is read by a predetermined reading unit, the clip is linked to the physical page to which the clip is attached. Clip processing means for fixing the electronic page number of the electronic page to the electronic page number linked to the physical page when the clip is attached;
The electronic book browsing apparatus of Claim 1 or 2. An electronic book browsing program for browsing electronic books,
A page marker displayed on each of the plurality of physical pages to identify a plurality of physical pages of the physical book and a plurality of physical pages to identify the plurality of physical pages of the physical book. Physical book information storage means for storing physical page numbers in association with each other;
In order to identify a plurality of electronic pages of the electronic book, an electronic page number assigned to each of the plurality of electronic pages and a content of each of the plurality of electronic pages of the electronic book are stored in association with each other. Electronic book information storage means for
A computer comprising
When a page marker displayed on a physical page browsed by a user among a plurality of physical pages of the physical book is read by a predetermined reading unit, a physical page number corresponding to the read page marker Is acquired from the physical book information storage means, the rotation number that is the number of rotations of the physical book by the user is specified by a predetermined method, and based on the acquired physical page number and the specified rotation number, The electronic page number of the electronic page associated with the physical page being browsed is specified, the content of the electronic page corresponding to the specified electronic page number is acquired from the electronic book information storage means, and the acquired content is Electronic book browsing means to be displayed on a predetermined display means;
E-book browsing program to function as.

Images